Police said they want to arrest 91 suspected dealers as part of the bust. So far, they have 56 suspects behind bars, they said.

The arrests culminated a 13-month investigation involving undercover officers buying illegal drugs, mostly crack cocaine. They came after a grand jury this week indicted the 91 suspected dealers on drug charges, and authorities said more arrests were expected.

"It doesn't necessarily mean this is a ring or these arrests are related, but just that we will go in and try to infiltrate a specific drug market," Metz said.

About 100 officers set up a command post at Georgia Southern's Paulson Stadium, where they processed the suspected dealers before taking them to the Bulloch County jail. They began making arrests at 4:30 a.m.

The arrests included only three or four Georgia Southern students, said university spokesman Mike Sullivan.